Fig. 3

Forest plot for risk factors of the severity of ARDS. Pneumonia remains the only significant risk factor for increased severity of ARDS in patients with sepsis (OR 2.512, 95% CI 1.039–6.067, p = 0.041). Other risk factors enrolled in the analysis include emergency admission (OR 0.685, 95% CI 0.311–1.513, p = 0.349), acute abdominal infection (OR 0.926, 95% CI 0.411–2.088, p = 0.852), SOFA (OR 1.093, 95% CI 0.985–1.212, p = 0.093). ARDS, acute respiratory distress syndrome; OR, odds ratio; CI, confidence interval; SOFA, sequential organ failure assessment